Switch.



D. D. GORDON. SWITCH. APPLIGATION FILED APR. 30, 1912.

Patented Mar. 16, 1915.

Emmwmm D UNITED sTATEs PATENT OFFICE;

DAVID D. GORDON, or cHIciaicio,- ILLINOIS, AssIGNOE To 1efoimcN ELECTRIC AND l MANUFACTURING eo., or CHICAGO, ILLINOIS.

^ SWITCH.

' T0 all whom t may concern: v Beit known that I, DAVID D. GORDON, a

citizen of they United States, residing at Chicago, .inthe county of Cook and State of 5 Illinois, havev invented a certain new. and

break the circuit.

It is the object of this .invention to provide a novel form of mechanism to accomplish this quick acting movement with'asfew partsas possible. v

I will describe my invention more specifically by reference to the .accompanying drawing illustrating two forms ofv carrying out my invention, in which: i

Figure 1 is a front view of my improved switch; Fig. 2 is a side view partl in section of the same; Fig. 3 isa view similar to Fig. 2, the parts being in an alternative polsition,Y and Fig. 4 is a sectional viewl of a modification. l

Referring more particularly to Figs. 1, 2 and 3, I-show a casing 1 Within which the switch elements are contained, which casing is provided withan attachment strip 2 of the usual variety by means of which the casing may be fastened to the wall as is'well understood. A front plate 3 of the ordinary variety partly shown in Fig. 1 covers .the structure, permitting the extension therethrough however of buttons 4, 5, as will be readily understood. These buttons 4, 5 also project through the strip 2 and are 4movable in and out similarly toI the buttons in switches of asimilar nature. These 'buttons 4 and 5 have extension rods 6 and 7 by means of which they engage a rockerarm 7 a, which rocker arm by means of the pin 8 is pivotally supported in the casing 1. Two connecting springs 9 and 10 lfastened to plates 11, 11

Y tlie'contact' ydevice is removed-from lthe callyv quick acting mechanism is used to other, which limiting positions are defined v-cillate'back Vand forth. The arm 17 may of Specification of Letters Patent. `1 3tntd Mr. 16, 19145.` Applicant-m aled- Aprii 30,1912. seria1*N0.es4, 1o4. i i

,-Ixioying the rocker arm from one of its alter- Y native posltions to the other, a contact makling device consisting preferably of a pair of integral rollers-13,- 13, is shifted lfrom e011-,

tact making 4position'be'tween the springs 9 andl() to its-,alternative position shown in Figs. 1 and 2,'in which alternative position springs 9 and 10. The rollers 13, ,13 on their linner sides' have extensions 14, 1 4 of smaller diameter integra-l with-fthe rollers.y 13,l and these cylindrical *portions* 14 are xedl'y. united by'means of` the' cylindricall stem 15' so that the contact device so *calledv consists of. the element 15, the elements 14, 14, and

theelements 13, 1 3, all preferably inadeof one piece. The elements 13, 13 are far" ehough apart-so that when placed between the springs 9 and 10 they make proper contact fby closing the Acircuit throughy said springs. The cylindrical portions 14, 14 are .adapted to ride on therocker arm 7 'and roll.

from one of their -limiting-positionsto the by the abutments 16, 16.

In order to insure the movementof' the contactdevices 13 rapidly from 'one'alternative position against' the abutment A16 to the other alternative position against the 17 whose forks areon opposite sides ofthe cylindrical element 15, andvhich arm 17 is held within the recess-e that it may oscourse project--throughf'-this opening 18 as, the Contact element -l'movesfrom one'position to the other by rolling along the rocker arm 7! A' springf19 pushes the 'arm 17 '95 against the cylindrical. element 15 as this spiing engages 'a shoulder 20 on said arm 17 an whickithe hole 1S1is provided. It will thus .be.seen'-,"for iustanc thatshould the 4button 10b,

5 bepressed' inwar y (Fig. 2) that the. up-

per erid'of the rockerarm 7*? will `project finally/farther towardlthe right than the lower-'portion anditlierelponthe pressure of the 'spri11'g 19, pressing 'against'v the cylindrical contact elementwi'llserve to roll this Contact element 'downwardly against the lower abutment 1 6, in"'which position. the contact elements v13will close the circuit through the springs 9 and 10. In the 4615 .zo l

alseengagesthe, element 21 within manner, referring to Fig. 3, should the button 4 be pressed inwardly, then the reverse operation takes place and the roller against the abutment 16 rolls by sna motiony toward the position occupied in ig. 2. It will thus be seen that very few parts are necessary in order to get this quick acting movement of the contact making element.

In Fig. 4, I show a modification in which the device is shown as applied to a pendant switch 'having a rocker .operating plunger 22 which engages a rocking element 23, which rocking element by means ofthe wings 24, 24 is held in place on top of a projection 25, which projection is firmly held lin place in the pendant switch and forms party of'a metallic element 27, which metallic element has a recess to accommodate the contact controlling arm 17 similarly as disclosed with relation to the structure of Fig. 2. Abutments 26 are provided on this rocker arm to again coperate with the contact making device 13 similarly to Fig. 2. The `forked extension 28 of the arm 23 is moved by means of the plunger 22 as is readily apparent Vfrom one to its alternative position. Springs 29 similar 'to the springs 9 and l10 are. used with which the elements 13 are adapted toeontact. l I

The' very simple nature of this quick break device will be readily apparent, and it lwill also be readily apparent that the same may be applied in many. forms. While I-have therefore described two forms which my invention'mayj take, I do not wish to limit myself to such forms, but

Having thus described several forms of my invention, .what I claim as new and desire to secure byLetters Patent is:

' 1. A' device of the lcharacter described .having a switch element, a movable switch element, a: rocking bar to control said movable switch element along which said movfas.

able switch element is movable, means to define the limit of movement of said movable switch element, resilient` means lto hold said movable switch element in association. with saidv rocking bar, and a rocking link *with said rocking bar, and a rocking link having its free end associated with said movable switch element.

. 3. A device of the character described having a switch element, a movable switch element, a rocking bar to control said movable switch element along which said movable switch element is movable, means on said rocking bar to deiine the limit of movement of said movable switchy element, resili- -ent means to hold said movable switch element in association with said rocking bar, anda rocking link havmg its free end associated with said movable switch element,Y

said resilient means also serving to maintain said rocking bar in one or the other of its alternative positions.

.4. A device of the characterl described having a switch element, `a cylindrical movable switch element, a rocking bar to control said movable switch element along which said movable switch element rolls, means on 'the rocking bar to define the limit of movement of said movable switch element, resilient means to hold saidv movable switch elel' ment in association with Said rocking bar, and a rocking link having its free end associated With said movable vlswitchelement, said resilient means also serving to maintain alternative positions.

Inwitness whereof, I hereunto subscribe my namethis 30th day of March A. D., 1912.

y Davinn. sonnen. Witnesses: 4

MAX'W. ZABEL, I-IAzEL J 01ans.

said rocking bar in one or the other of its l 

